The wave speed completely depends on the characteristics and properties of the medium . . . physical properties for mechanical waves, electrical properties for electromagnedtic waves.
So if you want to change the speed of a wave, you have to change the medium . . . shoot it through some different kind of stuff. <em>(B) </em>
Acceleration = Force \ mass
0,375N/0,60kg=0.6ms-2
Answer: Due to water pressure.
Explanation:
As depth increases so does the pressure.
